package demo1;


import java.util.ArrayList;
import java.util.List;
import java.util.Random;

public class Game {
    public static final String[] suits = {"♠","♥","♣","♢"};

    public List<Poker> buyPokers(){
        List<Poker> pokers = new ArrayList<>();
        for (int i = 0; i < 4; i++) {
            for (int j = 1; j <= 13; j++) {
                Poker poker = new Poker(suits[i],j);
                pokers.add(poker);
            }
        }
        return pokers;
    }

    public void shuffle(List<Poker> pokers){
        for (int i = pokers.size()-1; i >0 ; i--) {
            Random random = new Random();
            int index = random.nextInt(i);
            swap( pokers,i,index);
        }
    }

    public void swap(List<Poker> pokers,int i,int j){
        Poker temp = pokers.get(i);
        pokers.set(i,pokers.get(j));
        pokers.set(j,temp);
    }

    public List<List<Poker>> game(List<Poker> pokers){
        List<List<Poker>> hand = new ArrayList<>();
        List<Poker> hand1= new ArrayList<>();
        List<Poker> hand2= new ArrayList<>();
        List<Poker> hand3= new ArrayList<>();
        hand.add(hand1);
        hand.add(hand2);
        hand.add(hand3);
        for (int i = 0; i < 5; i++) {
            for (int j = 0; j < 3; j++) {
                hand.get(j).add(pokers.remove(0));
            }
        }
        return hand;
    }
}
